Messages in this thread |  | | Date | Sat, 02 Sep 2000 16:01:24 -0600 | From | "Jeff V. Merkey" <> | Subject | Re: [ANNOUNCE] Withdrawl of Open Source NDS Project/NTFS/M2FS for Linux |
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Andi Kleen wrote: > > On Sat, Sep 02, 2000 at 03:34:47PM -0600, Jeff V. Merkey wrote: > > > > KDB is putrid. Can it debug double faults? NO. Can it debug complex > > register and numeric evaluation statements like IF ((EAX == 1) && > > [ESP-4] == 0x3000)? NO. Can it debug nested task gate exceptions? > > remote gdb does that fine. > > I've never seen a nested task gate on Linux...
Of course not. Linux does not have a kernel debugger, or it would use them. That's what they are used for -- debugging running tasks from a kernel debugger that has it's own task gates. If you have nested task gates, then you can debug the kernel debugger with them.
> > > NO. Can it debug SMP locks races? NO. Can it debug priority inversion > > problems in sleep locks? NO. > > Given. Priority inversion does not seem to be a big problem in Linux though > (kernel threads usually run at the same priority, with the only higher > priority being interrupts/bhs). Also the sleep locking seems to be generally > simple enough that it is not a problem for user processes.
It will be when Linux finally implements real sleep locks in the kernel instead of aliased semaphores.
> > > Can the Kernel debugger in NetWare? YES. Can the Kernel Debugger in > > NT? YES. > > I guess they need it ;)
I need it.
Jeff
> > -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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